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Subject[PATCH 15/25] userns: Convert isofs to use kuid/kgid where appropriate
From: "Eric W. Biederman" <ebiederm@xmission.com>

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
---
fs/isofs/inode.c | 17 +++++++++++------
fs/isofs/isofs.h | 4 ++--
fs/isofs/rock.c | 4 ++--
init/Kconfig | 1 -
4 files changed, 15 insertions(+), 11 deletions(-)
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 29037c3..a7d8e6c 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -21,6 +21,7 @@
#include <linux/cdrom.h>
#include <linux/parser.h>
#include <linux/mpage.h>
+#include <linux/user_namespace.h>

#include "isofs.h"
#include "zisofs.h"
@@ -171,8 +172,8 @@ struct iso9660_options{
unsigned int blocksize;
umode_t fmode;
umode_t dmode;
- gid_t gid;
- uid_t uid;
+ kgid_t gid;
+ kuid_t uid;
char *iocharset;
/* LVE */
s32 session;
@@ -383,8 +384,8 @@ static int parse_options(char *options, struct iso9660_options *popt)
popt->fmode = popt->dmode = ISOFS_INVALID_MODE;
popt->uid_set = 0;
popt->gid_set = 0;
- popt->gid = 0;
- popt->uid = 0;
+ popt->gid = GLOBAL_ROOT_GID;
+ popt->uid = GLOBAL_ROOT_UID;
popt->iocharset = NULL;
popt->utf8 = 0;
popt->overriderockperm = 0;
@@ -460,13 +461,17 @@ static int parse_options(char *options, struct iso9660_options *popt)
case Opt_uid:
if (match_int(&args[0], &option))
return 0;
- popt->uid = option;
+ popt->uid = make_kuid(current_user_ns(), option);
+ if (!uid_valid(popt->uid))
+ return 0;
popt->uid_set = 1;
break;
case Opt_gid:
if (match_int(&args[0], &option))
return 0;
- popt->gid = option;
+ popt->gid = make_kgid(current_user_ns(), option);
+ if (!gid_valid(popt->gid))
+ return 0;
popt->gid_set = 1;
break;
case Opt_mode:
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index 3620ad1..9916723 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -52,8 +52,8 @@ struct isofs_sb_info {

umode_t s_fmode;
umode_t s_dmode;
- gid_t s_gid;
- uid_t s_uid;
+ kgid_t s_gid;
+ kuid_t s_uid;
struct nls_table *s_nls_iocharset; /* Native language support table */
};

diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index 70e79d0..c0bf424 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -364,8 +364,8 @@ repeat:
case SIG('P', 'X'):
inode->i_mode = isonum_733(rr->u.PX.mode);
set_nlink(inode, isonum_733(rr->u.PX.n_links));
- inode->i_uid = isonum_733(rr->u.PX.uid);
- inode->i_gid = isonum_733(rr->u.PX.gid);
+ i_uid_write(inode, isonum_733(rr->u.PX.uid));
+ i_gid_write(inode, isonum_733(rr->u.PX.gid));
break;
case SIG('P', 'N'):
{
diff --git a/init/Kconfig b/init/Kconfig
index 9cf8cb1..88f6571 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -944,7 +944,6 @@ config UIDGID_CONVERTED
depends on FUSE_FS = n
depends on GFS2_FS = n
depends on HPFS_FS = n
- depends on ISO9660_FS = n
depends on JFFS2_FS = n
depends on JFS_FS = n
depends on LOGFS = n
--
1.7.5.4


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